Geography

This fresco by Jacopo Ripanda depicts Hannibal crossing the Alps in 218 B.C. New research claims to have located the site of the general's first major victory in Spain.

The Ancient Battlefield That Launched the Legend of Hannibal

Two years before the Carthaginian general crossed the Alps, he won a decisive victory at the Battle of the Tagus

Young leatherback sea turtles.

COVID-19 Restrictions May Boost Leatherback Sea Turtle Nesting

Beaches in Florida and Thailand have tentatively reported increases in nests, due to decreased human presence. But the trend won’t necessarily persist

The Chiba cliff section along the Yoro River in the city of Ichihara shows traces of a reversal in the Earth's magnetic field.

The 'Chibanian Age' Is the First Geologic Period Named After a Site in Japan

The period is named for Japan’s Chiba prefecture, where a cliff shows evidence of the most recent reversal of Earth’s magnetic field

40 million people rely on the Colorado River for water, but its flow is falling by more than 9 percent with every 1.8 degrees Fahrenheit rise in temperature.

The Colorado River Is Shrinking as Temperatures Rise

River flow could drop by 19 to 31 percent if carbon emissions continues at their current pace

Remnants of Greater Adria in the Taurus Mountains

Study Reveals Lost Continent Demolished by Europe

Painstaking research recreates the history of Greater Adria, which slipped under the Eurasian plate 120 million years ago

An 8,000-Year-Old Platform in Britain Could Be the Oldest Boat-Building Site Ever Discovered

The Stone Age platform, where log boats may have been constructed, reveals early knowledge of advanced wood working techniques

Kami Rita Sherpa Summits Everest a Record 24 Times

The mountain guide topped out on the world's tallest peak twice in just the last week

The Glacier That Produced the 'Titanic' Iceberg Has Suddenly Stopped Flowing

After a period of losing 66 feet of ice per year, the Jakobshavn Glacier is growing again—but that doesn't mean glaciers aren't in trouble

Nepal's first solo mission to measure its iconic peak will determine whether Mount Everest lost some of its height after an earthquake in 2015.

Nepalese Expedition Seeks to Find Out if an Earthquake Shrunk Mount Everest

Scientists and climbers have trained for three years to prepare to take various types of survey's from the summit of the world's highest peak

Melting Glaciers on Denali Will Unleash Tons of Human Poop

An estimated 66 tons of feces left behind by climbers is coming out of the deep freeze on North America's highest peak

A bit of the ancient delta off the coast of Svalbard.

Earth's Largest River Delta Was the Size of Alaska

The Triassic Snadd delta between Norway and Russia lasted millions of years and was likely a biodiversity hotspot

River basin map of the contiguous United States

These Beautiful Maps Capture the Rivers That Pulse Through Our World

Cartographer Robert Szucs creates colorful maps of the watersheds that creep across states, countries, continents and the globe

NASA Releases Opportunity Rover's Final Panorama Photograph

The little Mars explorer was hit by a duststorm in June, 2018 and never recovered, but it did send back 354 images from on its final days

During the early Triassic epoch, Washington, D.C. was situated in a massive supercontinent called Pangea

This Map Lets You Plug in Your Address to See How It's Changed Over the Past 750 Million Years

The interactive tool enables users to home in on a specific location and visualize how it has evolved between the Cryogenian period and the present

In 2018, the Chesapeake Bay Foundation published its midpoint assessment of the on-going restoration efforts for the country's largest estuary.

Checking In on the Health and Vigor of the Chesapeake Bay

As clean-up milestones are registered by a recent assessment of the nation’s largest estuary, a Smithsonian geographer drops in on the region

Drone Captures Thousands of Years of Archaeology on Remote Scottish Islands

A drone survey of Canna and Sanday Islands collected 420 million data points, creating what may be the most detailed 3-D map of islands yet

Magnetic North Is Cruising Toward Siberia, Puzzling Scientists

It has drifted so far that scientists made an emergency revision to the World Magnetic Model

Images Show Landslide Likely Caused Indonesian Tsunami

Radar images appear to show the southwestern flank of the Anak Krakaktau volcano sheared off into the sea

Recently Deciphered 4,500-Year-Old Pillar Shows First Known Record of a Border Dispute

The marble stele, held in the British Museum's collections for 150 years, also includes the first known use of the term “no man’s land”

Satellite Data Detects Hundreds of New Sources of Ammonia Pollution

Detailed data shows livestock operations and fertilizers plants are major sources of the pollutant

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